Ответ:
a=2-b
5(2-b)+2b=3
b=7/3
a=2-7/3
a=-1/3
y=-5+3x
2x+7(-5+3x)=11
x=2
y=-5+3×2
y=1
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Ответ:
a=2-b
5(2-b)+2b=3
b=7/3
a=2-7/3
a=-1/3
y=-5+3x
2x+7(-5+3x)=11
x=2
y=-5+3×2
y=1